System and method of adjusting speed of electric tool
US12427640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Sep 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For a system of adjusting a speed of an electric tool, a power supply module is connected to an inverter, the inverter is connected to a motor and a controller; the controller is connected to a switch fixed-speed module, a rotational speed display module, and a fixed-speed prompting module. The switch fixed-speed module comprises a switch trigger connected to the controller and is configured to set a target operating speed of the motor based on the amount of turned-on stroke of the switch trigger. The rotational speed displaying module is configured to display a preset operating speed of the motor. The fixed-speed prompting module is configured to prompt a setting state of the target operating speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.